Construct `GetInfoAsync` in `EodHdMigrator`

[vicsharp-shibusa]

    public Task<string> GetInfoAsync()
    {
        throw new NotImplementedException();
    }

[vicsharp-shibusa]

Completed.

    public Task<string> GetInfoAsync()
    {
        StringBuilder result = new();

        result.AppendLine($"Mode                 : {_configuration.Mode.GetEnumDescription()}");
        result.AppendLine($"Source               : {_configuration.Source}");
        result.AppendLine($"Price Migration Mode : {_configuration.PriceMigrationMode.GetEnumDescription()}");
        result.AppendLine($"Source Deletion Mode : {_configuration.SourceDeletionMode.GetEnumDescription()}");
        result.AppendLine($"Max Parallelization  : {_configuration.MaxParallelization}");

        return Task.FromResult(result.ToString());
    }